dt-bindings: add vendor prefix for Linux Automation GmbH

Linux Automation GmbH[0] was founded in 2019 in order to develop
electronics for embedded Linux. Add its vendor prefix so it may be used
in future board and device compatibles.

[0]: https://www.linux-automation.comAcked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Robert Schwebel <rsc@linux-automation.com>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

Documentation/devicetree/bindings/vendor-prefixes.yaml

@@ -585,6 +585,8 @@ patternProperties:
     description: LSI Corp. (LSI Logic)
   "^lwn,.*":
     description: Liebherr-Werk Nenzing GmbH
+  "^lxa,.*":
+    description: Linux Automation GmbH
   "^macnica,.*":
     description: Macnica Americas
   "^mapleboard,.*":